You are downloading the Maths Rocket AppXBundle file v2018.204.2030.0 for Windows Phone. Maths Rocket is a free and useful Education app: MathsRocket intends to help kids sharpen their Mathematics skills. It has a variety of sums and puzzles.- Simple, Medium, Complex- One, ... You can now download the offline AppXBundle file to install & try it.
Download Locations for Maths Rocket 2018.204.2030.0 AppXBundle file
To try to install it manually from an SD card, you should choose one of the server location above to get the offline Maths Rocket AppXBundle file, move the file to your phone's SD card and then tap 'Install local apps' in the phone's App list.